JP5383528B2 - Disposable wearing items - Google Patents

Description

  The present invention relates to a disposable wearing article, and more particularly to a disposable wearing article such as a disposable diaper, a disposable toilet training pant, a disposable incontinence pant, a disposable sanitary pant, and the like.

  Conventionally, disposable diapers having a front waist member that forms a front waist region, a rear waist member that forms a rear waist region, and a crotch member that forms a crotch region located between the front and rear waist regions are known. For example, Patent Document 1 discloses that front and rear waist members are joined to the outside of a crotch member, and the crotch member has a patch sheet on which graphics are printed.

JP 2006-525858 A (JP 2006-525858 A)

  The graphic of the patch sheet of Patent Document 1 is supposed to be visible from the outside of the diaper by the wearer, and the aspect in which the graphic is not visible from the outside of the diaper or difficult to visually recognize is not disclosed.

  This invention makes it a subject to provide the wearing article in which the position confirmation mark formed in the crotch member overlaps with the front and rear waist members.

  The present invention includes a longitudinal direction and a lateral direction, a body side and the opposite side thereof, a first waist region that is one of the front and rear waist regions, a second waist region that is the other of the front and rear waist regions, A crotch region positioned between the first and second waist regions, a first waist member that forms at least the first waist region, a second waist member that forms at least the second waist region, and at least the crotch region. The present invention relates to improvement of a disposable wearing article having a crotch member to be bonded, and wherein the first and second waist members are joined to the opposite side of the crotch member.

  A feature of the present invention is that the crotch member has a printed sheet on which a position confirmation mark is formed, and the printed sheet overlaps the second waist member from a first edge that overlaps the first waist member. The mark extends continuously in the longitudinal direction up to the second end edge, and the mark overlaps at least one of the first and second waist members, and is thus invisible or difficult to see from the opposite side. It is in.

  As one embodiment of the present invention, the printing sheet is formed of a liquid-impervious and moisture-permeable sheet, and the crotch member includes the printing sheet and an outer sheet positioned on the opposite side of the printing sheet. Have

  As another embodiment, the printing sheet is formed of a liquid-impermeable and moisture-permeable plastic film, a fiber nonwoven fabric, and paper.

  As another embodiment, the crotch member is positioned between the first and second stacked regions where the first and second waist members overlap, and the longitudinal direction of the first and second stacked regions. A display element that is visible from the opposite side is formed in the intermediate region.

  As another embodiment, a display element visible from the opposite side is formed on at least one of the first and second waist members.

  As another embodiment, the display elements displayed on the first and second waist members are formed so as to overlap the first stacked region and the second stacked region.

  As another embodiment, the first and second waist members are impermeable to liquids located on the inner side of the first and second waist sheets, and the first and second waist sheets located on the opposite sides. The display element is formed on at least one of the front and rear display films.

  According to one or more embodiments of the present invention, since the position confirmation mark formed on the printed sheet of the crotch member overlaps at least one of the first and second waist members. The mark can be made invisible or difficult to view from the outside of the wearing article. Therefore, it is possible to prevent the aesthetics of the worn article from being damaged by the mark.

A perspective view of a diaper. A partially broken development view of a diaper. The exploded perspective view of a diaper. The IV-IV line schematic cross section of FIG. The partially broken plan view when the crotch member is viewed from the clothing side. Explanatory drawing for demonstrating the appearance of a diaper. Explanatory drawing of the manufacturing method of a crotch member. Explanatory drawing of the manufacturing method of the front-back waist member.

  1 is a perspective view of a disposable diaper 1 shown as an example of a disposable wearing article according to the present invention, FIG. 2 is a partially broken plan view of the diaper 1, FIG. 3 is an exploded perspective view of the diaper 1, and FIG. FIG. 4 is a schematic sectional view taken along line IV-IV in FIG. 2. The diaper 1 has a virtual vertical center line PP obtained by dividing the length dimension in the horizontal direction X into two equal parts, and a virtual horizontal center line QQ obtained by dividing the length dimension in the horizontal direction Y into two parts. The line PP is substantially symmetric.

  The diaper 1 includes a wearer's body side and the opposite clothing side, a front waist region 2, a rear waist region 3, a crotch region 4 located between the front and rear waist regions 2 and 3, and a virtual lateral center. The front and rear end portions 5 and 6 are opposed to each other with respect to the line Q-Q and extend in the horizontal direction X, and both side edges are opposed to each other with respect to the virtual vertical center line PP and extend in the vertical direction Y. Both side edges include a front edge 7 a located in the front waist region 2, a rear edge 7 b located in the rear waist region 3, and a crotch side edge 7 c located in the crotch region 4.

  The front and rear side edges 7a and 7b extend substantially parallel to the virtual vertical center line PP, and the crotch side edge 7c is formed in a concave shape so as to fit along the wearer's thigh. Yes. The front edge portion 7a and the rear edge portion 7b are connected by a side seam portion 8 that intermittently extends in the longitudinal direction Y, and a waist opening and a pair of leg openings are formed.

  The diaper 1 includes a front waist member 20 that forms part of the front waist region 2 and the crotch region 4, a rear waist member 30 that forms part of the rear waist region 3 and the crotch region 4, and the front and rear waist members 20, 30 and a crotch member 40 which is located between the longitudinal directions Y and forms a part of the crotch region 4.

  The front and rear waist members 20 and 30 have substantially trapezoidal front and rear waist sheets 21 and 31 and front and rear display films 22 and 32 joined to the inner surfaces of the front and rear waist sheets 21 and 31 by a hot melt adhesive or the like. For example, front and rear display elements 23 and 33 such as penguin pictures are formed on the front and rear display films 22 and 32, and the display elements 23 and 33 are formed on a surface facing the front and rear waist sheets 21 and 31. , 31 is visible from the clothing side of the diaper 1.

  The front and rear waist sheets 21 and 31 are spunbond fiber nonwoven fabrics, and are preferably formed from spunbond filament fibers whose fiber layers are crimped. When crimped fibers are used in this way, the crimped fibers expand and contract and have elastic elasticity, so that they can be in close contact with the wearer and the touch can be improved. The front and rear waist sheets 21 and 31 have a total light transmittance of about 60 to 100%, preferably about 70 to 80% in order to make the front and rear display elements 23 and 33 visible as described above. Yes. The total light transmittance was measured as a total light transmittance (%) using a cross-check colorimeter Z-300A manufactured by Nippon Denshoku Industries Co., Ltd.

  The front and rear display films 22 and 32 are formed of a liquid-impervious and moisture-permeable plastic film, and are attached in the vicinity of the center in the lateral direction X of the front and rear waist sheets 21 and 31.

  The crotch member 40 has a front end edge 40a that extends in the horizontal direction X and overlaps the front waist member 20, a rear end edge 40b that overlaps the rear waist member 30, and both side edges 40c that extend in the vertical direction Y. Further, the crotch member 40 is formed by an outer surface sheet 41 facing the front and rear waist sheets 21 and 31 on the clothing side, and a printing sheet 42 laminated on the body side of the outer surface sheet 41.

  The outer surface sheet 41 can use a moisture-permeable fiber nonwoven fabric, and the printing sheet 42 can use a liquid-impermeable and moisture-permeable plastic film, a fiber nonwoven fabric, a flexible sheet such as paper, or the like. The outer sheet 41 and the printing sheet 42 have substantially the same shape and size, and are joined to each other by a hot melt adhesive or the like.

  FIG. 5 is a view of the crotch member 40 as viewed from the outer surface sheet 41 side, and a part thereof is broken for explanation. As shown in the drawing, a position confirmation mark 43 and crotch display elements 44a and 44b such as fish pictures are formed on the surface of the print sheet 42 facing the outer sheet 41. The position confirmation mark 43 and the crotch display elements 44 a and 44 b are visible from the outer sheet 41. As with the front and rear waist sheets 21 and 31, the outer surface sheet 41 has a total light transmittance of about 60 to 100%, preferably about 70 to 80%.

  The position confirmation mark 43 is used for confirming the cutting position when the crotch member 40 continuous in the lateral direction X is cut. The position confirmation mark 43 is located in the vicinity of the front edge 40a and in the vicinity of the center in the lateral direction X. The crotch display elements 44 a and 44 b are formed in the vicinity of the rear edge 40 b and in the longitudinal direction Y inside of the position confirmation mark 43.

  As shown in FIGS. 2 and 3, the crotch member 40 is provided with a fixed sheet 45 made of a fiber nonwoven fabric covering the whole. The fixing sheet 45 is laminated on the printing sheet 42 and bonded by a hot melt adhesive or the like. The fixed sheet 45 is wider than the crotch member 40 and is located from the crotch region 4 to the rear waist region 3. The outer surface sheet 41 and the fixing sheet 45 may be formed from a spunbond fiber nonwoven fabric made of crimped fibers, or an elastic non-stretchable air-through fiber nonwoven fabric, like the front and rear waist sheets 21 and 31. May be.

  On the body side of the front and rear waist members 20 and 30 and the crotch member 40 as described above, a liquid absorbing structure 50 extending from the crotch region 4 to the front and rear waist regions 2 and 3 is attached by a hot melt adhesive or the like. The liquid absorbing structure 50 has a vertical rectangular shape defined by front and rear end edges 51 and 52 extending in the horizontal direction X and both side edges 53 extending in the vertical direction Y. The front edge 51 is positioned so as to overlap the front waist member 20, the rear edge 52 is positioned so as to overlap the rear waist member 30, and an intermediate portion between these front and rear edges 51, 52 is positioned in the crotch member 40. .

  The liquid-absorbing structure 50 includes a liquid-absorbent core 54 formed by covering a liquid-absorbent core composed of a mixture of fluff pulp and superabsorbent polymer particles with a liquid-diffusible sheet (not shown), A body side liner 55 that covers the absorbent surface of the liquid absorbent core material 54, a cover sheet 56 that covers the bottom surface of the liquid absorbent core material 54, and a plastic material that is located between the cover sheet 56 and the liquid absorbent core material 54 And a leak-proof sheet 57 formed from the above.

  The covering sheet 56 extends outward in the lateral direction X from both side edges of the liquid-absorbent core material 54, and a part of the covering sheet 56 is folded back toward the virtual longitudinal center line PP side to form a pair of sleeve-shaped side flaps. 58, 58 are formed. Inside the side flaps 58, 58, strand-like elastic elements 59, 60 made of an elastomer extending in the longitudinal direction Y are joined via a hot melt adhesive so as to be shrinkable. A plurality of elastic elements 59 located on the inner side in the lateral direction X extend from the crotch region 4 to the front and rear waist regions 2 and 3. By the contraction action of these elastic elements 59, both side portions of the covering sheet 56 are separated from the body side liner 55 to form a barrier or a gasket cuff, thereby preventing side leakage of excrement. A plurality of elastic elements 60 positioned outside the elastic element 59 in the lateral direction X are attached only to the central part of the crotch region 4 and form an elastic band extending along the groin part of the wearer.

  In the front waist region 2, the front waist sheet 21 is folded back toward the virtual lateral center line QQ along the front end portion 5 to form a front end flap 24. Further, in the rear waist region 3, the rear waist sheet 31 is folded back toward the virtual lateral center line QQ along the rear end portion 6 to form a rear end flap 34. In the front and rear end flaps 24 and 34, a plurality of front and rear waist elastic yarns 25 and 35 are attached along the front and rear end edges 5 and 6 so as to be retractable in the lateral direction X. These front and rear waist elastic yarns 25 and 35 are joined to the front and rear end flaps 24 and 34 by a hot melt adhesive or the like.

  The front and rear elastic sheets 26 and 36 are attached to the inner sides of the front and rear waist sheets 21 and 31 so as to be contractible in an extended state in the lateral direction X. The front and rear elastic sheets 26 and 36 are formed of a stretchable fiber nonwoven fabric containing elastomer fibers. The front elastic sheet 26 positioned in the front waist region 2 is positioned between the bottom surface of the liquid absorbing structure 50 and the front waist sheet 21 and is attached so as to be contractable in an extended state in the lateral direction X. The outer surface of the front elastic sheet 26 is bonded to the front waist sheet 21 by an adhesive means such as a hot melt adhesive (not shown), and the inner surface thereof is bonded to the covering sheet 56.

  The rear elastic sheet 36 positioned in the rear waist region 3 is positioned on the absorption surface side of the liquid absorbing structure 50 and is attached so as to be contractable in an extended state in the lateral direction X. Both side edges of the front and rear elastic sheets 26 and 36 overlap with both side edges of the front and rear waist sheets 21 and 31. The rear elastic sheet 36 extends from the rear end edge 52 to the outside in the vertical direction Y so as to cover the rear end edge 52 of the liquid absorbing structure 50, and extends from the both side edges 53 to the outer side in the horizontal direction X. Yes. On the outer side in the lateral direction X of the liquid absorbing structure 50, the rear elastic sheet 36 and the rear waist sheet 31 are joined to each other by joining means such as a hot melt adhesive (not shown) in the entire region.

  The front and rear end flaps 24 and 34 in which the front and rear waist sheets 21 and 31 are folded are joined to the inner surfaces of the front and rear elastic sheets 26 and 36. The front end flap 24 covers the front end edge 51 of the liquid-absorbing structure 50 with its inner end edge 21a, and is joined to the front elastic sheet 26 and the liquid-absorbing structure 50 by bonding means such as a hot melt adhesive (not shown) over the entire area. Is done. Covering and joining the front edge 51 of the liquid absorbing structure 50 with the front waist sheet 21 prevents the fluff pulp and the like of the liquid absorbing core material 54 from falling down.

  The rear end flap 34 has an inner edge 31a slightly overlapped with the rear elastic sheet 36, and is joined to the entire region by a joining means such as a hot melt adhesive (not shown).

  In the diaper 1 configured as described above, the front and rear elastic sheets 26 and 36 have a size corresponding to almost the entire front and rear waist regions 2 and 3 and are attached so as to be retractable in the lateral direction X. The wearer can fit almost all of the front and rear waist regions 2 and 3. Since it is possible to fit the wearer in a wider range by using the front and rear elastic sheets 26, 36, the diaper 1 can be prevented from sliding down.

  Front and rear leg elastic elements 27 and 37 are attached to the inner surfaces of the front and rear waist sheets 21 and 31 so as to be retractable along the crotch region 4 side and the crotch side edge portion 7c. The front and rear leg elastic elements 27 and 37 are formed of an elastic sheet formed of a stretchable fiber nonwoven fabric including elastomer fibers. A fixing sheet 45 is laminated on a part of the front leg elastic element 27 and the entire outer surface of the rear leg elastic element 37, and these elastic elements are fixed. With such front and rear leg elastic elements 27 and 37, the leg opening can be brought into close contact with the wearer.

The front and rear elastic sheets 26 and 36 have a mass of 20 to 50 g / m ² , preferably 30 to 40 g / m ² , and a fiber density of 0.01 to 0.04 g / cm ³ , preferably 0.025 to 0.035 g. It is preferably formed from a stretchable fiber nonwoven fabric made of a heat-fusible elastomer fiber in the range of / cm ³ . Specifically, thermoplastic polyurethane polymers and thermoplastic polymers other than thermoplastic polyurethane polymers, for example, polymers of polyolefins such as styrene elastomers, polyolefin elastomers, vinyl chloride elastomers, amide elastomers, polyethylene, polypropylene, polystyrene, etc. It can form from the mixed fiber containing the fiber which consists of a mixture.

  The front and rear elastic sheets 26 and 36 may be formed from a mixed fiber of elastomer fibers and non-elastomeric fibers. When this mixed fiber is used, the friction with respect to a wearer's skin by an elastomer fiber can be reduced. In other words, by mixing non-elastomeric fibers, it is possible to improve the slip of the wearer against the skin and to improve the flexibility and feel of the front and rear elastic sheets 26 and 36. Further, the stretchability of the front and rear elastic sheets 26 and 36 can be adjusted.

The front and rear waist sheets 21 and 31 have a mass of 15 to 40 g / m ² , preferably 25 to 35 g / m ² , and a fiber density of 0.06 to 0.10 g / cm ³ , preferably 0.07 to 0.09 g / m. It is preferably formed from a heat-bondable spunbond fiber nonwoven fabric of cm ³ . The front and rear waist sheets 21 and 31 may be formed of a plurality of layers.

  As shown in FIG. 6, the diaper 1 as described above is joined to the front and rear end edges 40 a and 40 b of the crotch member 40 by overlapping the front and rear waist members 20 and 30 to join the first and second laminated regions 61. 62, and an intermediate region 63 located between the first and second stacked regions 61, 62 is formed. As shown in FIGS. 5 and 6, a position confirmation mark 43 is formed in the first stacked area 61, and a crotch display element 44 a of a fish picture is drawn in the second stacked area 62. Are illustrated with crotch display elements 44b of fish pictures. Since the position confirmation mark 43 is used for detecting the cutting position when the crotch member 40 is cut, the mark 43 is not usually excellent in aesthetics. By appearing as it is in the appearance of the diaper, there is a possibility that the beauty of the diaper is impaired.

  However, in this embodiment, since the front waist sheet 21 and the front display film 22 of the front waist member 20 are laminated in the first laminated region 61, the position confirmation mark 43 can be made difficult to see from the outside. Further, a penguin picture is drawn on the front display film 22 as a front display element 23. By arranging the front display element 23 so as to overlap the position check mark 43, a position check mark 43 is further increased. Can be difficult to see. Therefore, it is possible to prevent the appearance of the diaper 1 from being damaged by the position confirmation mark 43.

  On the rear display film 32 of the rear waist member 30, a picture of a penguin having a fishing rod is drawn as a rear display element 33. Since the rear waist sheet 31 of the total light transmittance described above is laminated on the rear display film 32, the rear display element 33 is visible through the rear waist sheet 31. In the second stacked region 62 of the crotch member 40, a fish picture is drawn as the crotch display element 44a. This fish picture is arranged so as to be positioned at the tip of the fishing line drawn as the rear display element 33 when the rear waist member 30 is laminated, and is visible through the rear waist member 30. . However, the crotch display element 44a is difficult to see due to the laminated rear waist member 30. By making it difficult to see, the fish can be expressed as if it were hanging on a needle underwater. In this way, various pictures can be expressed by making the crotch display element 44a difficult to see.

  As described above, in order to make the crotch element 44 a visible through the rear waist member 30, a portion where the rear waist sheet 31 and the rear display film 32 are laminated and the rear display element 33 does not exist. The total light transmittance is about 60 to 100%, preferably about 70 to 80%. The total light transmittance was measured in the same manner as the total light transmittance of only the front and rear waist sheets 21 and 31. This is because when the total light transmittance is 60% or less, the crotch display element 44a of the crotch member 40 located in the lower layer becomes invisible. In this embodiment, as the front waist member 20, the one having the same total light transmittance as that of the rear waist member 30 is used.

  In the intermediate area 63 of the crotch member 40, a picture of fish is drawn as a crotch display element 44b. A picture of a penguin with a fishing rod is displayed on the front waist member 20 that overlaps the first laminated region 61, and even if these are stacked, the fishing line hanging from the fishing rod and the fish are separated from each other. Further, the crotch display elements 44b drawn in these intermediate areas 63 are visible from the outer sheet 41 as described above.

  In the diaper 1 as described above, in the front waist region 2, the position confirmation mark 43 is positioned in the first laminated region 61, and the front display element 23 and the position confirmation mark 43 are overlapped to confirm the position. The use mark 43 is hidden from the clothing side of the diaper 1, that is, from the outside of the front waist sheet 21. In the portion where the front display element 23 is formed, the total light transmittance is smaller than the other portions, and this overlaps, thereby making it impossible to visually recognize the position confirmation mark 43. The total light transmittance of the front waist member 20 in the portion where the front display element 23 is formed can be about 0 to 60%, preferably about 0 to 30%.

  In the rear waist region 3, the crotch display element 44a is positioned, and the rear display element 33 is positioned so as not to overlap the crotch display element 44a, thereby drawing the combination of the crotch display element 44a and the rear waist display element 33. You can enjoy the picture. Specifically, in the front waist region 2, a penguin that cannot yet catch fish on the front waist member 20 is represented by a front display element 23 and the position confirmation mark 43 is obscured. In the crotch region 4, fish in the sea Can be represented by a crotch display element 44b, and in the rear waist region 3, a penguin caught by a fish can be represented by a rear display element 33 and a crotch display element 44a.

  In this embodiment, in the front waist member 20, the example has been described in which the front display element 23 and the position confirmation mark 43 overlap each other so that the position confirmation mark 43 cannot be seen. By reducing the size, it is also possible to make it invisible or difficult to see even when it does not overlap the front display element 23. Further, the position confirmation mark 43 may be located in the second stacked region 62.

  In the rear waist member 30, the example in which the crotch display element 44 a is difficult to see has been described. However, the present invention is not limited to this, and the rear waist member 30 may be completely invisible due to the lamination of the rear waist member 30. Moreover, the combination that one waist member is hard to see and the other is not visible may be sufficient. In this embodiment, it is possible to create states that are invisible, difficult to see, and clearly visible, respectively, and the first laminated region 61, the second laminated region 62, the intermediate region 63, the front display film 22, and the rear display film. By drawing different pictures on 32, various variations of patterns can be expressed.

  In this embodiment, since the picture is drawn not only on the front and rear waist members 20 and 30 but also on the crotch member 40 as a display element, a picture can be drawn on a wider area, and each member can be drawn. By combining drawn pictures, you can create various variations of pictures.

  Although the position confirmation mark 43 is formed in the first laminated region 61 so as not to be seen, in addition to the position confirmation mark 43, a manufacturing number, a lot number, or the like can be attached. These numbers are covered with the laminated front waist member 20 and cannot be seen when the diaper 1 is worn, but can be made visible by peeling the front waist member 20. That is, the first and second laminated regions 61 and 62 are usually not visually recognized, and numbers or the like that can be visually recognized by peeling the front and rear waist members 20 and 30 as necessary are attached. You can also.

  FIG. 7 is a view for explaining a method of manufacturing the crotch member 40. The crotch member 40 is obtained by cutting a web 70 continuous in the machine direction MD along a cutting line 71. The web 70 is formed by laminating an outer sheet 41 and a printing sheet 42 that are components of the crotch member 40. The cutting line 71 extends along a cross direction CD orthogonal to the machine direction MD. On the print sheet 42, position confirmation marks 43 and crotch display elements 44a and 44b are respectively drawn. As the crotch display elements 44a and 44b, for example, three kinds of patterns of squid, fish, and shellfish are prepared and are arranged in order in the machine direction MD.

  The crotch member 40 as described above is cut and separated by a detection means (not shown) that detects the position confirmation mark 43 and a cutting means (not shown) that cuts the web 70 by a mark detection signal from the detection means. In this way, the web 70 forming the crotch member 40 can be cut along the cutting line 71 which is a predetermined position by the position confirmation mark 43.

  FIG. 8 is a view for explaining a method of manufacturing the front and rear waist members 20 and 30. The front and rear waist members 20 and 30 are obtained by cutting a web 80 continuous in the machine direction MD along a cutting line 81. Specifically, the front and rear display films 22 and 32 on which the front and rear display elements 23 and 33 are drawn are joined to the web 80 constituting the front and rear waist sheets 21 and 31. The front waist sheet 21 and the rear waist sheet 31 are obtained by cutting along a cutting line 82 that is continuous in the cross direction CD and extends in parallel to the cross direction CD.

  Like the crotch member 40, the front and rear waist sheets 21, 31 that are continuous in the machine direction MD are cut along a cutting line 81 extending in the machine direction MD by detecting the position confirmation mark 38. The position confirmation mark 38 may be formed on one of the front and rear waist sheets 21 and 31 by causing the sheet 21 and the rear waist sheet 31 to continue in the cross direction CD. After cutting along the cutting line 81, the front and rear waist sheets 21 and 31 may be separated from each other by cutting along the cutting line 82. After cutting along the cutting line 82, cutting along the cutting line 81 May be. In any case, since the front and rear waist sheets 21 and 31 correspond to the cross direction CD, the position confirmation mark 38 may be formed in one place.

  The front and rear display elements 23 and 33 drawn on the front and rear waist members 20 and 30 include, for example, a pattern A in which penguins and birds are drawn, and a pattern B in which only penguins are drawn. Are alternately arranged in the machine direction MD of the web. Since the three patterns of squid, fish, and shell which are the crotch display elements 44a and 44b of the crotch member 40 are arranged in order in the machine direction MD of the web, the front and rear obtained by cutting the webs 70 and 80 By forming the diaper 1 by combining the waist members 20, 30 and the crotch member 40, the adjacent diapers 1 have different designs. For example, it is possible to obtain a pattern such as a pattern formed by combining the pattern A of the front and rear display elements 23 and 33 and the squid of the crotch display elements 44a and 44b, and a pattern formed by combining the pattern B and fish.

  Since the front and rear display elements 23 and 33 have two patterns and the crotch display elements 44a and 44b have three patterns, the number of these types is different. When forming and cutting the web 70 to form the crotch member 40 and joining the front and rear waist members 20 and 30 and the crotch member 40 in the cut order to form the diaper 1, increase the pattern in the combination. Can do. That is, the front and rear waist members 20 and 30 have the display element patterns repeatedly appearing in the order of patterns A and B, and the corresponding display elements of the crotch member 40 are squid, fish and shellfish patterns in this order. Appears repeatedly. Then, when the pattern of squid, fish, and shellfish goes around, the patterns A and B corresponding to this pattern shift one by one. Therefore, the pattern displayed on the diaper 1 is rich in combinations such as pattern A and squid, pattern B and fish, pattern A and shellfish, pattern B and squid, pattern A and fish, pattern B and shellfish. Become. That is, the number of combinations can be increased by simply repeating the display elements in the required order and changing the number of types of the front and rear display elements and the crotch display elements. This combination is equal to the least common multiple of the number of types of front and rear display elements and the number of types of crotch display elements. The number of types of the front and rear display elements and the crotch display elements is not limited to the above and can be arbitrarily set.

  In addition to the materials described in the present specification, various known materials that are usually used in this type of field can be used for each constituent member constituting the diaper 1 without limitation.

  In the specification and claims of this invention, the terms “first” and “second” are used merely to distinguish similar elements, positions, and the like. Further, in the specification and claims of the present invention, the term “first waist region” means one of the front and rear waist regions, and the “second waist region” means the other.

1 Diaper (disposable wearing article)
2 Front waist area (first or second waist area)
3 rear waist area (first or second waist area)
4 Crotch area 8 Side seam portion 20 Front waist member (first or second waist member)
21 Front waist seat (first or second waist seat)
22 Front display film (first or second display film)
23 Previous display element (display element)
30 Rear waist member (first or second waist member)
31 Rear waist seat (first or second waist seat)
32 Rear display film (first or second display film)
33 Rear display element (display element)
40 Crotch member 40a Front edge (first or second edge)
40b Rear edge (first or second edge)
41 External sheet 42 Print sheet 43 Position confirmation mark 44a Crotch display element (display element)
44b Crotch display element (display element)
61 First stacked region 62 Second stacked region 63 Intermediate region

Claims (7)

A longitudinal direction and a lateral direction; a body side and the opposite side; a first waist area that is one of the front and rear waist areas; a second waist area that is the other of the front and rear waist areas; and the first and second A crotch region positioned between the waist regions, a first waist member forming at least the first waist region, a second waist member forming at least the second waist region, and a crotch member forming at least the crotch region; In the disposable wearing article in which the first and second waist members are joined to the opposite side of the crotch member,
The crotch member has a printed sheet on which a position confirmation mark is formed, and the printed sheet is continuous from a first edge that overlaps the first waist member to a second edge that overlaps the second waist member. The mark extends in the longitudinal direction, and the mark overlaps at least one of the first and second waist members, and is thus invisible or difficult to see from the opposite side. Wearing articles.   The disposable wear according to claim 1, wherein the printed sheet is formed of a liquid-impermeable and moisture-permeable sheet, and the crotch member includes the printed sheet and an outer sheet positioned on the opposite side of the printed sheet. Goods.   The disposable wearing article according to claim 1 or 2, wherein the printing sheet is formed of a liquid-impermeable and moisture-permeable plastic film, a fiber nonwoven fabric, and paper.   The crotch member includes a first laminated region and a second laminated region where the first and second waist members overlap, and an intermediate region located between the longitudinal directions of the first and second laminated regions, The disposable wearing article according to any one of claims 1 to 3, wherein a display element visible from the opposite side is formed in the region.   The disposable wearing article according to any one of claims 1 to 4, wherein a display element visible from the opposite side is formed on at least one of the first and second waist members.   The disposable wearing article according to claim 5, wherein the display elements displayed on the first and second waist members are formed so as to overlap the first laminated region and the second laminated region.   The first and second waist members include first and second waist sheets positioned on the opposite sides, and a liquid-impervious and moisture-permeable front and rear display film positioned on the inner side of the first and second waist sheets. The disposable wearing article according to claim 5 or 6, wherein the display element is formed on at least one of the front and rear display films.

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